Quote Originally Posted by Holland View Post

My Cycling Experience:
I spent two months cycling to work on a mountain bike; kept on the same gear of 2 and 5 on a 21-speed. Each way, it took me ½ hour covering 7 miles, including a very steep bridge. The longest trip I'd ever biked was 9 hrs; it was a rental bike, one gear with coastal brake. I was tired by the end but I wasn't burnt out; with a few short stop-overs, it was enjoyable riding. That is the extend of my riding experience. That said, I am healthy and athletically built. I don't know how long and fast I would ride with full panniers, does 100km a day sound unreasonable?
Why not try some rides that are somewhere between than 9 hours and 2 months before you set out on your tour?

After a few days you could probably answer most of your own questions about equipment and distances.